Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG840664752

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840664752

Diamond specifications and retailer prices

From $256 USD
HK$2,000 HKD
As of November 1, 2026
Save $497 USD (66%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,149 USD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG840664752 or 840664752. Listed at 18 retailers as of November 1, 2026, with a 194% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840664752
Dimensions10.81 × 5.57 × 3.52 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.81 mm5.57 mm1.23 ctD / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG840664752
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $753 USD|Low: $178 USD|High: $1,149 USD|Avg: $529 USD|-2.5%
Retailer 1
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Retailer 10
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Retailer 12
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Retailer 19
Reve Diamonds
November 2, 2026
Retailer 4$186 USD
Retailer 7$207 USD
Retailer 3$216 USD
Retailer 5$230 USD
Retailer 8$256 USD
Retailer 19$309 USD
Retailer 16$380 USD
Retailer 17$390 USD
Retailer 2$406 USD
Retailer 14$415 USD
Retailer 10$474 USD
Retailer 9$478 USD
Retailer 12$589 USD
Retailer 18$730 USD
Retailer 13$739 USD
Retailer 6$741 USD
Retailer 1$753 USD
Retailer 11$795 USD
Retailer 15$1,080 USD
Reve Diamonds$1,149 USD

27 data points across 20 retailers

18 retailers$256 USD to $753 USD

Retailer 1
-
$186 USD
Price last confirmed 10 days ago
Retailer 2
-
$216 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$230 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$256 USD
HK$2,000 HKD
View
A
Retailer 5
-
$380 USD
€362 EUR
View
Retailer 6
-
$390 USD
ZAR 6,295 ZAR
View
Price last confirmed 11 days ago
Retailer 7
-
$406 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$415 USD
£327 GBP
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$474 USD
View
Retailer 10
-
$478 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$589 USD
View
B+
Retailer 12
-
$730 USD
View
B+
Retailer 13
-
$739 USD
SGD 998 SGD
View
Retailer 14
-
$741 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$753 USD
View
Retailer 16
-
$795 USD
View
Price last confirmed 7 days ago
Retailer 17
-
$1,080 USD
£850 GBP
View
Price last confirmed 7 days ago
Most Expensive
Reve Diamonds
112672E73 · Oct 25
$1,149 USD
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $256 USDSave up to $497 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.23ct Marquise
$256 USD